baber/WOPTO huggingface dataset:
Patent GB-756811-A (GB)
Title: Improvements in or relating to screened electric ignition systems
IPC: F02P7/02
Filed: 1954-09-02
Abstract: 756,811. Switch cases. BOSCH GES. R. Sept. 2, 1954 [Sept. 3, 1953], No. 25457/54.. Class 38(5) An ignition distributer has a screening hood 12, the cables 16, 18 being connected through damping resistances 33 ... 35 to the electrodes. The resistances may be wholly outside, but touching the hood (Fig. 1, not shown), or may project half into .the hood (as shown), or may be wholly inside, but touching the hood.
Patent GB-1457670-A (GB)
Title: Nuclear reactor fuel rod thermal simulator
IPC: H05B7/16
Filed: 1974-06-10
Abstract: 1457670 Heating by glow discharge VARIAN ASSOCIATES 10 June 1974 [11 June 1973] 25718/74 Heading H5H A nuclear fuel rod thermal simulator comprises a stainless steel tube 16, a part of which 15 is hermetically sealed and is heatable by glow discharge. The part 15, bounded by insulators 17, 17<SP>1</SP>, contains a discharge sustaining gas (e.g. hydrogen or helium) at reduced pressure (e.g. 2À5 torr) and has a central electrode 18, the stainless steel tube 16, earthed, being the other electrode. Part 15 may be heated to 900‹ C. Tube 16 may have a liner 37, of tungsten, molybdenum or an alloy of one of these with a platinum metal. Electrode 18 may be a tungsten wire or a tungsten tube partially filled with silver that is vaporized at operating temperatures and acts as a heat pipe. Insulators 17, 17<SP>1</SP> may be of thorium dioxide and shaped at the facing ends to provide long current leakage paths. Thermocouple 23 has connecting leads 25; current supply to electrode 18 is via lead 22.
Patent GB-154767-A (GB)
Title: Improvements in or relating to electrical fuses and distribution boards
IPC: H02B1/00
Filed: 1919-10-21
Abstract: 154,767. Dean, H. J., and Redmayne, W. Oct. 21, 1919. Fusible cut-outs; bases.-A distribution fuse board is constructed with a number of insulating base blocks set side by side, the meeting edges of which have recesses which co-operate to form slots for the entry of the contact blades of fuse bridges, all bus bars and contacts being thereby enclosed. Two such base blocks may be held together in any convenient way to form a base for a single fuse, the base contacts for which are enclosed by the recessed parts. In constructing, a distribution fuse-board, blocks a having side recesses a', a<4> are distended on supporting rods h between end plates i. A bus-bar composed of two strips d separated by distance pieces e at intervals is threaded through holes in the blocks in alinement with the upper recesses a<4>, and the upper blades of the fuse carrier pass between and contact with the strips d. The bus-bar is positioned laterally by means of the cable connexion g which is received in and covered bv a recess in another block f which lies over the rods h. The separate fuse contacts c are held between the lower recesses a<1> and access to them may be gained by removing the block f and sliding the required blocks a along their bearers h. The base blocks employed for a single fuse are formed at each end with similar recesses a<1>, as shown in Fig. 5. Cooperating circular projections a<7>, b<3> may be formed on the base blocks and fuse bridges respectively to seal the fuse connexions.
Patent GB-1278344-A (GB)
Title: Improvements in or relating to machines for lowering heaving floors in underground mine workings
IPC: E02F3/28
Filed: 1970-05-28
Abstract: 1278344 Shovelling machines MASCHINENFABRIK RUDOLF HAUSHERR & SOHNE GmbH 28 May 1970 [17 Dec 1969] 25737/70 Heading E1F A machine for lowering heaving floors in underground mine workings involves a full track vehicle 1 having a vertically adjustable scoop equipped with striking tools mounted on a column 3 pivotable supported on the forepart 2 of the frame of the vehicle 1 and pivoted by means controlled by controls located at the rear of the frame, which carries a hingedly mounted driving seat 16 adjacent the controls.
Patent GB-1115791-A (GB)
Title: Improvements in or relating to ventilators
Inventor: LAMBIE HOWARD RUSSELL
IPC: F24F7/007
Filed: 1964-06-22
Abstract: 1,115,791. Ventilators. COLT VENTILATION & HEATING Ltd. 18 June, 1965 [22 June, 1964], No. 25810/64. Heading F4V. In a powered extractor ventilator, having a cylindrical extraction passage 13 leading to a discharge passage 29 the inlet 31 to the discharge passage is of the same cross-sectional area as the extraction passage, and the discharge passage is of progressively increasing cross sectional area in the direction of air flow. As illustrated, a rectangular cowl in part defining the passage 29 is hinged at one side 28 to a rectangular flange 17 surrounding the extraction passage and the discharge passage extends around the other three sides of the ventilator. A one way valve is provided in the form of a U-shaped plate 51 hinged at 61 to a strut 60 which is in turn hinged at 62 to the cowl. The plate 51 is also hinged to an elongated plate 53 which is in turn hinged to the side 28 of the cowl. The hinges are all in thu form of plastics films and the plate 51 is biased towards the closed position by a bow spring 63. Figs. 2 and 4 (not shown), the bias being overcome by operation of the fan impeller 15. In a modification, Fig. 5 (not shown), the cowl, flange and valve plate are circular and the plate slides over a rod 77 attached to the cowl and extending through a central opening 80 in the plate.
Patent GB-368246-A (GB)
Title: Improvements in and relating to induction motors
IPC: H02P1/42
Filed: 1930-08-29
Abstract: 368,246. Induction motors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Aug. 29, 1930, No. 25885. Convention date, Aug. 31, 1929. Void [Published under Sect. 91 of the Acts]. [Class 35.] In a one-phase induction motor having a split-phase auxiliary winding for starting the number of turns of the main winding in circuit during starting is different from that in circuit in ordinary running. Fig. 1 shows an arrangement in which a switch r is arranged to put the auxiliary winding b in circuit and at the same time to cut out some of the turns of the main winding a. When the motor has reached its full speed the switch r cuts out the winding b and throws the whole of the winding a into circuit. In a modification parts of the main winding are put in circuit at starting and cut out at full speed. The switch may be operated by an automatic regulator.
Patent GB-507619-A (GB)
Title: Improvements in frequency-responsive detectors
IPC: H03J7/04
Filed: 1938-09-05
Abstract: 507,619. Automatic tuning corrections; frequency modulation. HAZELTINE CORPORATION. Sept. 5, 1938, No. 25921. Convention date, Oct. 1, 1937. [Class 40 (v)] A frequency-selective network for demodulation of a a frequency-modulated carrier or the derivation of an automatic frequency control voltage comprises means for deriving a voltage varying in phase and magnitude with the applied frequency and equal to a second invariable voltage at one of the limiting frequencies of the operating band, and obtaining a rectified voltage proportional to the difference of these two voltages. The superheterodyne receiver shown has a frequency detector 20 fed from the intermediate frequency amplifier 14 supplying a voltage to control the frequency of the local oscillator 18 by means of the control circuit 19. The detector 20 comprises a valve 9 having connected in series in its output an inductance 21 and a bridge network 22. The bridge consists of two parallel arms including series-connected inductance 23 and resistance 24 and series-connected condenser 25 and resistance 26. Inductance 36 and condenser 37 are connected to neutralize the output capacitance 35 of valve 9, and inductance 38 is arranged to neutralize the stray capacity-39. A secondary circuit 27, 28, sharply tuned to the mean frequency of the intermediate frequency channel is coupled to inductance 21. The constants of the bridge 22 are so selected that the voltages across resistances 24, 26 do not vary appreciably in phase with frequency, and at the mean frequency are displaced 45‹ oneither side of the voltage across the circuit 27, 28. At the limiting frequencies the voltage across 27, 28 coincides with and is equal to one or other of the voltages across 24 or 26. The difference of the voltages across 24 and tuned circuit 27, 28 is rectified by a diode 29, while the difference of the voltages appearing across 26 and circuit 27, 28 is rectified by diode 30. The difference of the voltages appearing across load resistances 31, 32 is applied to the control circuit 19. One of the rectifiers may be omitted and the difference between the tuned circuit voltage and the voltage across one arm of the bridge only may be employed. In a modification, Fig. 3 (not shown), in which the device is employed as a frequency modulation detector, the tuned circuit is connected in shunt to the reactance bridge and the junction point of the diode load resistances is connected to a centre tap in the inductance of the tuned circuit.
Patent GB-475175-A (GB)
Title: Improvements in or relating to endless-belt conveyors
IPC: B65G47/76
Filed: 1936-05-12
Abstract: 475,175. Endless-belt conveyers. ROGERS, J. N. O., CHARLTON, T., BAINBRIDGE, F., and WOOD & CO., Ltd., H. May 12, 1936, Nos. 25930 (divided application), and 25324. [Class 78 (i)] In mining-operations in which the workings extend laterally on each side of a main haulage way, a single belt conveyer is arranged to extend across this haulage way into workings on opposite sides, the upper run of the belt being used to convey material from one working to a common discharging conveyer or to separate conveyers or to trucks in the main haulage way while the lower run of the conveyer conveys material from the opposite working to the same discharging means. Fig. 1 shows one construction in which the carrying lower run delivers over a roller k to the discharge conveyer m while the material on the upper run is removed by a plough l and passes over a shoot n to the conveyer m. Numerous modifications are shown and described covering the removal of the material by different arrangements of plough and rollers and the duplication of the conveyer m or its replacement by a line of trucks. In addition the driving motor p for the belt may be arranged at either end of the belt or near the discharge point. In one modification the main haulage way is bridged at different levels to provide tracks for the two carrying runs of the belt and ploughs on the bridges divert both lots of material into trucks. In a modification of this last construction the bridges give an inclination to the belt so that the material rolls off sideways into trucks or on to a delivery belt. The end members g, h and the discharge unit f of the belt may be constructed as described in Specification 404,694. Fig. 9 shows troughing-means 27 for the upper rim of the carrying-belt with outwardly flaring edges 28 which enclose the lower run and divert spillage clear of the latter. The members 28 carry hooked portions 31 which fit over the framing 32 and also embrace studs thereon to secure them against the longitudinal displacement. Similar diverting-means are also shown fitted to a flat belt.
Patent GB-716801-A (GB)
Title: Acoustic duct for electro-acoustic transducer
Inventor: ROBERTSON JAMES SAMUEL PATERSO
IPC: H04R1/08
Filed: 1951-11-06
Abstract: 716,801. Tubes. STANDARD TELEPHONES & CABLES, Ltd. Oct. 24, 1952 [Nov. 6, 1951], No. 25949/51. Class 99 (2). [Also in Groups XXXVIII, XXXIX and XL (b)] A telephone operator's headset comprises a flexible acoustic tube leading to a microphone. The tube comprises a number of hollow nesting segments 1 of polythene held frictionally together by a helical spring 7 so that the tube will remain in adjusted position.
Patent GB-1080935-A (GB)
Title: Dissolving air in water
IPC: B01F3/04
Filed: 1965-06-19
Abstract: A portion of waste water to be treated is aerated at high pressure and treated with chemicals before return to the main flow in a rotating pressure exchange which reduces the aeration pressure for the bulk of the liquid.
Patent GB-882716-A (GB)
Title: Improvements relating to carton separators
Inventor: COOPER ALFRED WILLIAM
IPC: B65D5/49
Filed: 1956-08-24
Abstract: 882,716. Partitions for boxes. GOOLNIK Ltd. S. & S. Nov. 25, 1957 [Aug. 24, 1956], No. 26034/56. Class 18. A blank, Fig. 1, for a carton divider is scored to define a median fold line 2 and has a plurality of pairs of flaps 3 cut therein, the flaps of each pair being formed on opposite sides of the median fold line and on opposite sides of a straight line which is transverse to the median fold line and which contains the fold line 4 of each flap. The blank has end tongues 10 and is erected as illustrated in Fig. 2.
Patent GB-805019-A (GB)
Title: Improvements in or relating to the purification of selenious anhydride
Inventor: MERRE MARCEL DE
IPC: C01B19/00
Filed: 1956-08-27
Abstract: An impure solution of selenious anhydride containing Hg is purified by passing the solution successively through a cation exchanger and an anion exchanger, and the latter passage is effected in the presence of an amount of Cl ions which in weight is at least equal to that of the Hg.  The SeO2 solution may be passed first through a cation exchange resin of the sulphonic type, which may be regenerated by 2N.HCl.  The anion exchange resin may be of the strong amine type, which retains the Hg as a complex anion HgxCly, and from which the Hg may be recovered by distillation under vacuum.  The resulting solution may be given a further treatment with a cation exchange resin, and selenium of purity suitable for rectifiers may be precipitated from the solution by SO2, hydroxylamine, or hydrazine, including hydrazine sulphate.
Patent GB-279242-A (GB)
Title: Improvements in change speed gears
IPC: F16H59/04
Filed: 1926-10-20
Abstract: 279,242. Livesey, T. F. Oct. 20, 1926. Controlling-apparatus, arrangements of hand and transmission gear in conjunction with. - Change-speed gearing in a casing A is controlled from a lever E, which may be arranged at the right side of a vehicle, by means of a plate B which has two movements at right angles. The gear lever E is pivoted to a sleeve D' rotatable on a rod D and its lower end is connected to a rod C which is fixed to the plate B and is guided in an arm c on the sleeve D<1>. Thus movement of the gear lever in the plane of Fig. 1 moves the plate laterally to select one of the selector bars b<4>, and movement perpendicular to that plane moves the plate B and the selected bar longitudinally of the vehicle. The lever E may be guided by a gate. The rod D may be adapted to be turned by a lever G<1> so as to operate the vehicle brakes by way of a lever g and rod G.
Patent GB-535816-A (GB)
Title: Improvements in honing or lapping machines
IPC: B24B33/06
Filed: 1939-09-19
Abstract: 535,816. Honing- and lapping-machines. BURGESS, A. F. (Barnes Drill Co.). Sept. 19, 1939, No. 26140. [Class 60] A honing- or lapping - machine, having tool and work supports and power operated means for reciprocating one of these supports through a normal working stroke and for moving it through an additional distance to separate or associate tool and work, is characterized by automatic means which causes the additional movement to be effected at a slower speed to avoid damage. The machine is started, from the position shown in Figs. 1 and 4, by pressing a switch S<SP>1</SP> thereby energizing a relay R<SP>1</SP> to close switches R<SP>11</SP>, R<SP>12</SP> so starting a motor M and pump P. This supplies fluid, through a speed-regulating valve SV and a reversing valve, to the top of a cylinder 9 thus moving down the hone H, which is rotated by the motor M, gearing 21, 20, and a spindle 13. During the first part of this movement an arm 73, engaging a block 41 on the hollow piston rod 11, also falls with a cam 72 thus allowing a switch LS in the relay circuit R<SP>12</SP>, R<SP>1</SP> to close. A groove 50, wider at the bottom than at the top, then engages a stop 49 on a rod 41 and rotates the block 46<SP>1</SP> to allow the stop to pass thereby acting, through segmental gears 51 and linkwork 54 to rotate the valve SV to the slow position during the entry of the hone into the work W. When the block 46<SP>1</SP> has passed the stop 49 a spring 51a returns it to the angular position shown and increases the speed. When the block strikes the limit stop 48 this is moved down and, acting through gearing 42 and linkwork 45 reverses the valve RV and causes the hone and block to rise. When this reaches the stop 49 it lifts it and returns the valve RV to the .position shown. The hone thus reciprocates until a timing device T, started by the closing of the switch LS, acts to close a switch TS and thus, by a relay R<SP>2</SP>, switch R<SP>21</SP> and solenoid PS, to rotate the valve SV to slow position and the block 461 to the position which allows it to pass the stop 49 without engaging it and eventually to engage the limit stop 47 and arm 73, thus moving the valve RV to the position shown and stopping the machine by opening the switch LS.
Patent GB-1361321-A (GB)
Title: Watch case
IPC: G04B37/08
Filed: 1972-06-05
Abstract: 1361321 Watches DAINI SEIKOSHA KK 5 June 1972 [5 June 1971 (2)] 26168/72 Heading G3T A watch glass 30 is bonded to a support ring 23 and attached to a cup-shaped case body 12 by means of a bezel 32 which extends between the body and ring and is pressed by first and second gaskets 21, 28 held in grooves 20, 27 therein. The bezel is retained by the gaskets and by sloping surfaces 36, 37 on the bezel and body, in such a position that the support ring 23 is pressed axially against a further gasket 25 of silicone rubber to retain a movement-holding ring 22. Removal of the bezel is facilitated by a notch 44 adjacent the upper surface 19 of the body 12. In an alternative arrangement, the first gasket (47), Fig. 2 (not shown) is of hard plastics and extends to the surface 19, and flange 34 of the bezel presses on a shoulder (51) of the glass 30.
Patent GB-1483154-A (GB)
Title: Web feeding apparatus
IPC: B31F1/20
Filed: 1975-06-19
Abstract: 1483154 Spacing slit webs SIMON CONTAINER MACHINERY Ltd 13 April 1976 [19 June 1975] 26210/75 Heading B8R Apparatus for directing webs slit in a machine (11, Fig. 1, not shown) to a transverse cutting machine including rotary cutters (13, 14) disposed at different levels comprises a plurality of fingers 16, one for each slit web, mounted pivotally at one end of a table 15 and pivoted between upper and lower operative positions by double-acting cylinders 17 and locking means 19, 20 securing the fingers 16 in their selected operative positions, as well as means 25 in the form of electric switches for charging the cylinders 17 in readiness to move their respective fingers to newly selected portions when the locking means 19, 20 is released. The locking means includes a bolt 20 for each finger actuated between extended, locking position and retracted releasing position by a common switch 26, the bolt 20 co-acting with opposite faces of a block 19 to maintain the fingers 16 in their respective displaced positions.
Patent GB-773848-A (GB)
Title: Improved training idlers for belt conveyors
IPC: B65G39/16
Filed: 1955-09-14
Abstract: 773,848. Endless-belt conveyers. VISAGIE, S., and ROPER, S. V. Sept. 14, 1955 [Sept. 15, 1954], No. 26363/55. Class 78 (1). In mechanism for automatically maintaining the position of belts, the belt passes between pairs of rollers 14, Fig. 5A, at the ends of a cross-member 8 which is pivotally mounted on a pin 12 at the end of an arm 13 rigidly connected at 3 to the swinging frame 2 carrying the troughing rollers 1. In a modification the member 8, Fig. 3A, is pivoted at 9 to one end of a lever 10 which pivots on a pin 7 mounted at the end of a bracket 6 projecting from the fixed base supporting the rollers 1. The other end of the lever is formed with a slot 11 to receive a pin 12 which is mounted on an arm 13 connected rigidly to the frame 2.
Patent GB-616388-A (GB)
Title: Improvements in or relating to clippers for hedges, grass or the like
IPC: A01G3/053
Filed: 1946-09-02
Abstract: 616,388. Hedge-clippers. CARTER, D. H. Sept. 2, 1946, No. 26378. [Class 6 (ii)] Relates to clippers for hedges or grass, comprising a frame or casing with a blade or blades mounted thereon, the blade or blades co-operating with a rotary or oscillatory cutter, and consists in providing means to rotate or oscillate the cutter through a one-way clutch by a handle moved to and fro on the frame or casing. The inverted cup-shaped casing 1 has a hollow handle 3. Mounted freely on the pivot pin 4 is a segmental cutter 5 with teeth 6 on its periphery. A radial slot 8 is formed in the cutter engaging an eccentric pin 9 on a spindle which is rotated through a one-way clutch 12 by movement of the handle 19 to move chain 17, engaging a sprocket wheel B above the flywheel 11. The chain is secured at the other end to a spring 18 in the handle 3 so that as the handle 19 is oscillated the flywheel rotates in the direction of arrow A and the cutter plate is oscillated by pin 9 giving a cutting motion between the teeth 6 and fixed cutter plate with teeth 16.
Patent GB-684199-A (GB)
Title: Improvements in or relating to electrical contacts
IPC: H01H1/0237
Filed: 1950-11-01
Abstract: 684,199. Switch contacts. IGRANIC ELECTRIC CO., Ltd. Nov. 1, 1950 [Nov. 28, 1949], No. 26681/50. Drawings to Specification. Class 38 (v) [Also in Group XXII] A contact capable of making and breaking large currents, e.g. 2,000 amperes, is in the form of a bonded mass of powders composed of silver, cadmium oxide and cobalt sulphate. The cadmium oxide and cobalt sulphate in powder form of suitable fineness may be mixed and then moulded under pressure to produce slugs which are heated to 1600F. and then ground to produce particles which are mixed with silver powder, the whole then being moulded under pressure and heated and further compressed to form the contacts. The mixture may consist of 75 to 93 per cent silver, 5¥ to 23¥ per cent cadmium oxide and 1“ to 5 per cent cobalt sulphate. Reference has been directed by the Comptroller to Specification 588,652.